Fixed build on newer Cygwin installs.
Updated configure with Ryan's cygwin workaround
Update SDL_LogOutput for WIN32 so it writes to the console
Win32: Ignore WM_MOUSELEAVE in relative mode.

We get an WM_MOUSELEAVE when we switch to relative mode, even though the cursor is still in the window.
Ignoring this event to not end up with a NULL mouse focus.

This fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1861
Win32: Fix issue with SetCapture & negative values.

This fixes an issue where we were using the wrong macros to extract the position from WM_MOUSEMOVE, so negative values were behaving incorrectly.
These would be generated in multimon situations, or if you use SetCapture.

Fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1175
Mac: Fix invalid PS3 controller mapping.

PS3 controller had swapped D-Pad down & left buttons, as well as X & Y buttons.
Thanks to Alex Szpakowski for the bug report and fix.

Fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1891
Fixed doxygen warnings and corrected documentation in header files.
Joystick: Only send joy events when focused.

This changes makes it so that you only receive joystick (and implicitly
gamecontroller) input events when your application has keyboard focus.
If you'd like to still receive events when your application is in the
background, set the SDL_JOYSTICK_ALLOW_BACKGROUND_EVENTS hint to "1".

This fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1892